JPH0324163B2 - - Google Patents
Info
- Publication number
- JPH0324163B2 JPH0324163B2 JP60116173A JP11617385A JPH0324163B2 JP H0324163 B2 JPH0324163 B2 JP H0324163B2 JP 60116173 A JP60116173 A JP 60116173A JP 11617385 A JP11617385 A JP 11617385A JP H0324163 B2 JPH0324163 B2 JP H0324163B2
- Authority
- JP
- Japan
- Prior art keywords
- seedling
- planting
- gear
- seedlings
- retrieval
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 241000209094 Oryza Species 0.000 claims description 13
- 235000007164 Oryza sativa Nutrition 0.000 claims description 13
- 235000009566 rice Nutrition 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 14
- 210000000078 claw Anatomy 0.000 description 13
- 241000196324 Embryophyta Species 0.000 description 8
- 239000007943 implant Substances 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Landscapes
- Transplanting Machines (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、田植機に用いられる植付装置に関
し、特に、回転運動をしながら苗の取出し、植付
けを行う植付装置の改良に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a planting device used in a rice transplanter, and particularly relates to an improvement in a planting device that takes out and plants seedlings while rotating. be.
従来、苗載せ台に載置された苗を苗取出し口か
ら取出して田面に植付ける植付装置であつて、こ
の植付装置は、苗取出し口に対向して、回転中心
から所定長さ放射方向に延びる歯車ケースを一方
向に回転するよう軸支し、この歯車ケースの先端
部に苗取出し・植付機構（植付体）を装着すると
共に、歯車ケース内に歯車列を設け、歯車ケース
の回転運動に伴つて前記苗取出し・植付機構の姿
勢を、苗取出し姿勢と苗植付け姿勢とに変位させ
るようにした植付装置が、例えば特公昭49−
17806号公報により知られている。
Conventionally, this is a planting device that takes out seedlings placed on a seedling platform from a seedling take-out port and plants them on the rice field. A gear case extending in the direction is supported so as to rotate in one direction, a seedling retrieval/planting mechanism (planting body) is attached to the tip of the gear case, and a gear train is provided inside the gear case. For example, there is a planting device in which the attitude of the seedling take-out/planting mechanism is changed between a seedling take-out position and a seedling planting position in accordance with the rotational movement of
It is known from Publication No. 17806.
上記のような植付装置において、太陽歯車に中
間歯車を介して噛合う遊星歯車軸に固定した植付
体（苗取出し・植付機構）の先端は楕円状の軌跡
を描いて運動するが、しかし、各歯車間のバツク
ラツシユあるいは歯車の軸間距離の製作誤差など
により、植付体は遊星歯車軸を中心として円周方
向に若干の遊びを生じ、その結果、苗取出し時の
負荷の大小、あるいは回転数の高低による遠心力
の影響などで植付体先端の軌跡が不安定になる恐
れがあつた。
In the above-mentioned planting device, the tip of the planting body (seedling retrieval/planting mechanism) fixed to the planetary gear shaft that meshes with the sun gear via the intermediate gear moves in an elliptical trajectory. However, due to bumps between each gear or manufacturing errors in the distance between gear axes, the planting body has some play in the circumferential direction around the planetary gear shaft, resulting in a large or small load when taking out the seedlings. Alternatively, there was a risk that the trajectory of the tip of the transplanted body would become unstable due to the influence of centrifugal force due to the high or low rotational speed.
この植付体先端の軌跡は、苗取出し量、即ち一
株本数を決定する大きな要因であり、これが不安
定であると、植付体先端の苗マツトへの喰込み量
が一定とならず、一株本数が不均一となる恐れが
あつた。 The trajectory of the tip of the planting body is a major factor in determining the amount of seedlings taken out, that is, the number of plants per plant.If this trajectory is unstable, the amount of biting of the tip of the planting body into the seedling pine will not be constant. There was a risk that the number of plants per plant would be uneven.
本発明は、上記の問題点を解決することを目的
になされたものである。 The present invention has been made to solve the above problems.
上記の目的を達成するために本発明は、苗載せ
台に載置された苗を苗取出し口から取出して田面
に植付ける植付装置であつて、この植付装置は、
苗取出し口に対向して、回転中心から所定長さ放
射方向に延びる歯車ケースを一方向に回転するよ
う軸支し、この歯車ケースの先端部に苗取出し・
植付機構を装着すると共に、歯車ケース内に歯車
列を設け、歯車ケースの回転運動に伴つて前記苗
取出し・植付機構の姿勢を、苗取出し姿勢と苗植
付け姿勢とに変位させるようにしたものにおい
て、前記苗取出し・植付機構の先端が苗取出し口
から苗を取出す直前から取出した苗を田面に植付
ける間の一定期間、歯車ケース内の歯車のバツク
ラツシユあるいは歯車の軸心距離の誤差で生じる
苗取出し・植付機構の苗取出し量変化方向の遊び
を、歯車ケース内に設けた弾性体の弾発力により
押圧して除去し、さらに同弾性体の弾発力により
苗取出し・植付機構の回転による慣性作動を助勢
するように構成したことを特徴とするものであ
る。
In order to achieve the above object, the present invention is a planting device that takes out seedlings placed on a seedling platform from a seedling take-out port and plants them on a rice field.
A gear case that extends radially for a predetermined length from the center of rotation is supported to rotate in one direction, facing the seedling take-out port, and a seedling take-out port is provided at the tip of the gear case.
In addition to mounting the planting mechanism, a gear train is provided in the gear case so that the attitude of the seedling retrieval/planting mechanism is displaced between a seedling retrieval attitude and a seedling planting attitude as the gear case rotates. In this case, during a certain period from just before the tip of the seedling retrieval/planting mechanism takes out the seedlings from the seedling retrieval port to when the taken out seedlings are planted on the rice field, there is an error in the backlash of the gear in the gear case or the axial center distance of the gear. The play in the direction of the change in the amount of seedlings taken out by the seedling taking out/planting mechanism is removed by pressing it with the elastic force of the elastic body provided in the gear case, and the elastic force of the elastic body is used to remove the seedlings taking out/planting. It is characterized by being configured to assist inertial operation due to the rotation of the attachment mechanism.
このように構成することによつて、苗取出し・
植付機構の運動軌跡が、苗取出し時から苗を植付
けるまでの間は安定して一定軌跡で作動し、正確
な苗の取出し、植付け作業が行える。
With this configuration, it is possible to take out seedlings and
The movement trajectory of the planting mechanism is stable and constant from the time of taking out the seedlings to the time of planting the seedlings, allowing accurate seedling removal and planting operations.
以下、図面を参照して本発明の一実施例を具体
的に説明する。
Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings.
第１図は本発明を適用した乗用型田植機を示
し、この乗用型田植機は、乗用車体１の後部に油
圧シリンダ３の伸縮運動により上下動する昇降リ
ンク２を設け、この昇降リンク２の後部に苗植付
装置４が装着されている。 FIG. 1 shows a riding type rice transplanter to which the present invention is applied. This riding type rice transplanter is provided with an elevating link 2 at the rear of a passenger vehicle body 1 that moves up and down by the telescopic movement of a hydraulic cylinder 3. A seedling planting device 4 is attached to the rear.
この苗植付装置４は、伝動フレームを兼ねる本
体５に、左右方向に所定のストロークで往復移動
するように、かつ前傾状に支持された苗載せ台６
と、この苗載せ台６の傾斜下端に設けた苗取出し
口（図示せず）と対向する位置で、回転軸７を中
心に前方（矢印方向）に向け回転する植付体伝動
ケース８とが設けられ、植付体伝動ケース８の両
端部に一対の植付体９，９が取付けられている。
また、本体５の下側には、前後一対のリンク体１
０，１０を介してフロート１１が上下動可能に装
着されている。 This seedling planting device 4 includes a seedling platform 6 supported by a main body 5 which also serves as a transmission frame so as to move back and forth in the left and right direction with a predetermined stroke and in a forward tilted manner.
A planting body transmission case 8 rotates forward (in the direction of the arrow) about a rotating shaft 7 at a position opposite to a seedling take-out port (not shown) provided at the lower end of the sloping end of the seedling platform 6. A pair of planting bodies 9, 9 are attached to both ends of the planting body transmission case 8.
In addition, a pair of front and rear link bodies 1 are provided on the lower side of the main body 5.
A float 11 is mounted via pins 0 and 10 so as to be movable up and down.
前記植付体伝動ケース８は、第２図ないし第４
図に示すように、本体５に設けたミツシヨンケー
ス１２からフランジ１３、ボス部１３ａを介して
水平に突出する回転軸７に固着されて回転するよ
うになつており、この伝動ケース８の長さ方向中
央部に回転軸７と同軸に設けた偏心歯車からなる
太陽歯車１４が、伝動ケース８からフランジ１３
側に突出した端部をボス部１３ａに固着して回転
しないように配設されている。この太陽歯車１４
と噛合い、かつ太陽歯車１４と同様のギヤ比、同
量の偏心量をもつ中間歯車１５および遊星歯車１
６が、伝動ケース８内にそれぞれ噛合するよう軸
支されている。そして、伝動ケース８外に突出し
た遊星歯車１６の回転軸１７に、植付体９，９が
取付けられ、回転軸７により植付体伝動ケース８
を回転させることにより、遊星歯車１６は太陽歯
車１４を中心として公転すると共に、偏心歯車の
ため、外部より見て一定方向において一定動作で
揺動するようになつている。 The planting body transmission case 8 is shown in FIGS. 2 to 4.
As shown in the figure, the transmission case 12 provided on the main body 5 is fixed to and rotates on a rotating shaft 7 that projects horizontally through a flange 13 and a boss portion 13a. A sun gear 14 consisting of an eccentric gear provided coaxially with the rotating shaft 7 at the center in the transverse direction is connected to the flange 13 from the transmission case 8.
The end portion protruding to the side is fixed to the boss portion 13a so as not to rotate. This sun gear 14
An intermediate gear 15 and a planetary gear 1 that mesh with the sun gear 14 and have the same gear ratio and the same amount of eccentricity as the sun gear 14.
6 are pivotally supported in the transmission case 8 so as to mesh with each other. The planting bodies 9, 9 are attached to the rotating shaft 17 of the planetary gear 16 protruding outside the transmission case 8, and the planting bodies transmission case 8 is attached to the rotating shaft 7.
By rotating the planetary gear 16, the planetary gear 16 revolves around the sun gear 14, and since it is an eccentric gear, it swings in a constant direction in a constant motion when viewed from the outside.
植付体９は、本体１８の一端が回転軸１７に固
着され、本体１８の前縁部に植付爪１９が取付け
られると共に、本体１８を長さ方向に貫通して植
込フオーク２０が所定の範囲で移動可能となつて
おり、本体１８内に設けた圧縮ばね２１によつて
常時押出し側に付勢されている。植込フオーク２
０の基端部にはカムフオロアー２２が設けられ、
植込体伝動ケース８側に設けたカム２３（第５図
参照）に摺接し、植込フオーク２０をばね２１の
弾発力と共働して進退させるようにしている。そ
して、植込爪１９の先端は、第２図のＡで示す上
下に長い楕円状の軌跡を描いて運動し、Ｕ位置で
苗Ｍのマツト部を１株状に分離して取出し、Ｐ位
置で植込フオーク２０が植込爪１９に沿つて下降
し田面に挿苗し、植込フオーク２０は植込爪１９
の戻り行程で上昇するようになつている。 In the planting body 9, one end of the main body 18 is fixed to the rotating shaft 17, a planting claw 19 is attached to the front edge of the main body 18, and a planting fork 20 is inserted through the main body 18 in the length direction. It is movable within a range of , and is always urged toward the extrusion side by a compression spring 21 provided within the main body 18. planted fork 2
A cam follower 22 is provided at the base end of 0,
It slides into contact with a cam 23 (see FIG. 5) provided on the side of the implant transmission case 8, and moves the implantation fork 20 forward and backward in cooperation with the elastic force of the spring 21. Then, the tip of the implantation claw 19 moves in a vertically long elliptical trajectory as indicated by A in FIG. The planting fork 20 descends along the planting claw 19 and inserts seedlings into the rice field.
It is designed to rise on the return stroke.
このような歯車列で植付装置４を構成し、低速
無負荷状態で作動させると、遊星歯車１６には植
付体伝動ケース８との間にある軸受およびオイル
シールの摩擦抵抗、カム２３・カムフオロアー２
２の摩擦抵抗、オイルの粘性抵抗、植付体９にか
かる重力等の力が働くが、これらは第６図におい
て反時計方向に働くから、中間歯車１５は歯面Ｊ
および遊星歯車１６の歯面J-を介してこれら反時
計方向の力に打ち勝つべく遊星歯車１６を時計方
向に駆動し、植込爪１９は安定した軌跡を描いて
作動することになる。 When the planting device 4 is configured with such a gear train and operated at low speed and no load, the planetary gear 16 is affected by the frictional resistance of the bearing and oil seal between the planting body transmission case 8 and the cam 23. Cam follower 2
Forces such as the frictional resistance of 2, the viscous resistance of oil, and the gravity applied to the planting body 9 act in a counterclockwise direction in FIG.
The planetary gear 16 is driven clockwise via the tooth surface J - of the planetary gear 16 to overcome these counterclockwise forces, and the implanted claw 19 operates in a stable trajectory.
しかし、苗の取出し時に負荷がかかつたときは
苗取出し抵抗が、植付体伝動ケース８が高速回転
するときには植付体９に生じる遠心力および植付
体９の姿勢変化に伴う慣性力が、いずれも第６図
において時計方向に働くから、前記無負荷・低速
回転時に遊星歯車１６にかかる力に対向するた
め、各歯車の噛合い時におけるバツクラツシユ、
あるいは軸心間の避けられない製作誤差等により
生じた各歯車間の若干の〓間に相当する角度だけ
苗植付装置４の角度は不安定となり、苗の取出し
量（本数）が一定しないことになる。 However, when a load is applied when taking out the seedlings, there is resistance to take out the seedlings, and when the planting body transmission case 8 rotates at high speed, the centrifugal force generated in the planting body 9 and the inertial force due to the change in the posture of the planting body 9 are generated. , all act in the clockwise direction in FIG. 6, so in order to counter the force applied to the planetary gear 16 during the no-load, low-speed rotation, the backlash when the gears mesh,
Alternatively, the angle of the seedling planting device 4 may become unstable by an angle corresponding to a slight gap between each gear caused by unavoidable manufacturing errors between shaft centers, and the amount (number) of seedlings taken out may not be constant. become.
このため、植込フオーク２０を上下動させるカ
ム２３を第５図のような形状とし、植込フオーク
２０の下降Ｂを挿苗時のほかに植付爪１９が苗Ｍ
マツト部進入以前に設け、植込フオーク２０がカ
ム２３に摺接して下降Ｂする際の分力Ｃ（第６図
参照）により遊星歯車１６を駆動して、歯面Ｋお
よび歯面K-で噛合うようにし、植付爪１９を歯
車間の〓間分だけ押し上げ、植込フオーク２０の
下降期間Ｅまで植付爪１９先端軌跡を安定させる
ようにしている。 For this reason, the cam 23 that moves the planting fork 20 up and down is shaped as shown in FIG.
It is installed before entering the pine part, and the planetary gear 16 is driven by the component force C (see Fig. 6) when the implantable fork 20 slides on the cam 23 and descends B, and the tooth surface K and the tooth surface K - are driven. The planting claws 19 are pushed up by the distance between the gears, and the tip trajectory of the planting claws 19 is stabilized until the descending period E of the planting forks 20.
この植付爪１９先端軌跡を安定させるために、
さらに第３図および第４図に示すように、遊星歯
車１６の側部に、回転軸１７と共に回転するアー
ム２４の先端にローラ２５を取付け、また、太陽
歯車１４の側部のボス部１３ａ外周に基端を枢支
し、常時、ばね２６により押圧されて先端が遊星
歯車１６の側方まで延びるレバー２７が設けられ
ている。そして、前記ローラ２５は、回転に伴つ
て所定の回転範囲でレバー２７に摺接し、レバー
２７をばね２６に抗して押上げるようにしてい
る。また、レバー２７は、ローラ２５と摺接しな
いときは中間歯車１５の側部に設けたベアリング
２８に接して静止している。第４図において、ロ
ーラ２５がＧ位置にきたときレバー２７と接して
Ｈ位置までレバー２７を持上げる。レバー２７の
先端部のローラ２５と摺接する部分は、ローラ２
５の回転半径と同じ曲率で弯曲しており、また、
ベアリング２８と接するレバー２７の部分もベア
リング２８の外周と同じ曲率で弯曲している。レ
バー２７はＨ位置からＩ位置までは停留してお
り、Ｉ位置から逆にローラ２５を押付ける。この
押付け力によつて遊星歯車１６を歯車間の間〓分
のみ時計方向に駆動して歯面Ｋおよび歯面K-（第
６図参照）で噛合うようにし、遊星歯車１６に取
付けられた植付爪１９を押上げ、植付爪１９先端
軌跡を安定させるようになつている。 In order to stabilize the tip trajectory of this planting claw 19,
Further, as shown in FIGS. 3 and 4, a roller 25 is attached to the side of the planetary gear 16 at the tip of an arm 24 that rotates together with the rotating shaft 17, and a roller 25 is attached to the outer circumference of the boss portion 13a on the side of the sun gear 14. A lever 27 is provided whose base end is pivotally supported by the lever 27 and whose tip end extends to the side of the planetary gear 16 while being pressed by a spring 26 at all times. As the roller 25 rotates, it comes into sliding contact with the lever 27 within a predetermined rotation range, thereby pushing the lever 27 upward against the spring 26. Further, when the lever 27 is not in sliding contact with the roller 25, it is in contact with a bearing 28 provided on the side of the intermediate gear 15 and remains stationary. In FIG. 4, when the roller 25 reaches the G position, it contacts the lever 27 and lifts the lever 27 to the H position. The portion of the tip of the lever 27 that comes into sliding contact with the roller 25 is
It is curved with the same curvature as the rotation radius of 5, and
The portion of the lever 27 that contacts the bearing 28 is also curved with the same curvature as the outer circumference of the bearing 28. The lever 27 remains at rest from the H position to the I position, and presses the roller 25 in the opposite direction from the I position. This pressing force drives the planetary gear 16 clockwise by the distance between the gears so that the tooth surfaces K and K - (see Fig. 6) mesh with each other, and The planting claw 19 is pushed up to stabilize the trajectory of the tip of the planting claw 19.
なお、第５図に示すカム２３において、Ｂは歯
車間の〓間を取るための下降部、Ｄは植込フオー
ク停留部、Ｅは挿苗部（植込フオーク２０下降）、
Ｆは植込フオーク上昇部を示している。 In addition, in the cam 23 shown in FIG. 5, B is a descending part for creating a gap between the gears, D is a planting fork stopping part, E is a seedling part (the planting fork 20 is lowered),
F indicates the raised part of the planted fork.
このように構成することで、回転軸７によつて
植込体伝動ケース８が回転し、固定された太陽歯
車１４と噛合う中間歯車１５、遊星歯車１６によ
つて回転軸１７が回転し、植付体９が第２図に示
すように作動し、植付爪１９でＵ位置において苗
Ｍを取出すと共にＰ位置で植込フオーク２０が作
動して田面に挿苗する。 With this configuration, the implant transmission case 8 is rotated by the rotating shaft 7, and the rotating shaft 17 is rotated by the intermediate gear 15 and the planetary gears 16 that mesh with the fixed sun gear 14. The planting body 9 operates as shown in FIG. 2, and the planting claws 19 take out the seedlings M at the U position, and the planting fork 20 operates at the P position to insert the seedlings into the rice field.
この苗の取出し、挿苗（植付け）時に、カムフ
オロアー２２と摺接するカム２３が第５図のＢに
あるとき、ローラ２５はレバー２７に対し第４図
でＩ位置から矢印方向にレバー２７が仮想線位置
に至る位置まで接していて、遊星歯車１６を歯車
間の間〓分のみ逆駆動して遊星歯車１６の回転軸
１７に取付けられた植付爪１９を押上げ、植付爪
１９先端軌跡を安定させる。 When the cam 23 in sliding contact with the cam follower 22 is at position B in FIG. 5 when taking out the seedlings and inserting (planting) the seedlings, the roller 25 is moved relative to the lever 27 in the direction of the arrow from position I in FIG. The planetary gear 16 is reversely driven by the distance between the gears to push up the planting pawl 19 attached to the rotating shaft 17 of the planetary gear 16, and the tip trajectory of the planting pawl 19 is changed. stabilize.
以上説明したように、本発明による田植機の植
付装置によれば、苗取出し・植付機構（植付爪１
９）の先端が苗取出し口から苗を取出す直前から
挿苗する間の一定期間、歯車のバツクラツシユあ
るいは歯車の軸心距離の誤差により生じる遊びを
除去し、かつ慣性作動を助勢するようにしたか
ら、苗取出し・植付機構の動作が安定し、苗取出
し量（一株の苗本数）が一定となると共に、所定
の姿勢で植付けることができる。また、作業能率
をあげるために歯車ケースの回転数を早くしても
植込体の動作が安定しているので何ら支障なく、
植付作業が能率化できる。
As explained above, according to the planting device of the rice transplanter according to the present invention, the seedling retrieval/planting mechanism (planting claw 1
9) Because the tip of the seedling remover eliminates play caused by bumping of the gear or error in the axial center distance of the gear during a certain period of time from just before taking out the seedlings from the seedling outlet to inserting the seedlings, and also supports inertial operation. The operation of the seedling retrieval/planting mechanism is stable, the amount of seedlings taken out (the number of seedlings per plant) is constant, and the seedlings can be planted in a predetermined posture. In addition, even if the rotation speed of the gear case is increased to increase work efficiency, the operation of the implant remains stable, so there is no problem.
Planting work can be streamlined.
第１図は本発明を適用した乗用型田植機の側面
図、第２図は要部の動作説明図、第３図は要部の
横断平面図、第４図は同側面図、第５図はカムの
動作を示す側面図、第６図は要部の動作説明図で
ある。
１……乗用車体、２……昇降リンク、３……油
圧シリンダ、４……苗植付装置、５……本体、６
……苗載せ台、７……回転軸、８……植付体伝動
ケース、９……植付体、１０……リンク体、１１
……フロート、１２……ミツシヨンケース、１３
……フランジ、１３ａ……ボス部、１４……太陽
歯車、１５……中間歯車、１６……遊星歯車、１
７……回転軸、１８……本体、１９……植付爪、
２０……植込フオーク、２１……圧縮ばね、２２
……カムフオロアー、２３……カム、２４……ア
ーム、２５……ローラ、２６……ばね、２７……
レバー、２８……ベアリング、Ａ……植付爪の先
端軌跡、Ｕ……苗取出し位置、Ｐ……挿苗位置、
Ｍ……苗。
Fig. 1 is a side view of a riding rice transplanter to which the present invention is applied, Fig. 2 is an explanatory diagram of the operation of the main parts, Fig. 3 is a cross-sectional plan view of the main parts, Fig. 4 is a side view of the same, Fig. 5 6 is a side view showing the operation of the cam, and FIG. 6 is an explanatory diagram of the operation of the main part. DESCRIPTION OF SYMBOLS 1...Passenger vehicle body, 2...Elevating link, 3...Hydraulic cylinder, 4...Seedling planting device, 5...Main body, 6
... Seedling stand, 7 ... Rotating shaft, 8 ... Planting body transmission case, 9 ... Planting body, 10 ... Link body, 11
... Float, 12 ... Mission case, 13
...Flange, 13a...Boss part, 14...Sun gear, 15...Intermediate gear, 16...Planetary gear, 1
7... Rotating shaft, 18... Main body, 19... Planting claw,
20... implanted fork, 21... compression spring, 22
...Cam follower, 23...Cam, 24...Arm, 25...Roller, 26...Spring, 27...
Lever, 28... Bearing, A... Tip trajectory of planting claw, U... Seedling removal position, P... Seedling insertion position,
M...Seedlings.
Claims (1)
出して田面に植付ける植付装置であつて、この植
付装置は、苗取出し口に対向して、回転中心から
所定長さ放射方向に延びる歯車ケースを一方向に
回転するよう軸支し、この歯車ケースの先端部に
苗取出し・植付機構を装着すると共に、歯車ケー
ス内に歯車列を設け、歯車ケースの回転運動に伴
つて前記苗取出し・植付機構の姿勢を、苗取出し
姿勢と苗植付け姿勢とに変位させるようにしたも
のにおいて、 前記苗取出し・植付機構の先端が苗取出し口か
ら苗を取出す直前から取出した苗を田面に植付け
る間の一定期間、歯車ケース内の歯車のバツクラ
ツシユあるいは歯車の軸心距離の誤差で生じる苗
取出し・植付機構の苗取出し量変化方向の遊び
を、歯車ケース内に設けた弾性体の弾発力により
押圧して除去し、さらに同弾性体の弾発力により
苗取出し・植付機構の回転による慣性作動を助勢
するように構成したことを特徴とする田植機の植
付装置。[Scope of Claims] 1. A planting device for taking out seedlings placed on a seedling platform from a seedling take-out port and planting them on a rice field, the planting device having a center of rotation facing the seedling take-out port. A gear case extending a predetermined length in a radial direction is supported so as to rotate in one direction, and a seedling retrieval/planting mechanism is attached to the tip of the gear case, and a gear train is provided inside the gear case. The attitude of the seedling retrieval/planting mechanism is displaced between a seedling retrieval position and a seedling planting position in accordance with the rotational movement of the seedling retrieval/planting mechanism, wherein the tip of the seedling retrieval/planting mechanism removes the seedlings from the seedling retrieval port. For a certain period of time from just before taking out the seedlings to planting the taken out seedlings on the rice field, the play in the direction of the change in the amount of seedlings taken out of the seedling taking out/planting mechanism caused by the backlash of the gear in the gear case or the error in the axial center distance of the gear is controlled by the gear. It is characterized by being configured so that the seedlings are pressed and removed by the elastic force of an elastic body provided in the case, and further, the elastic force of the elastic body assists inertial operation due to rotation of the seedling retrieval/planting mechanism. Planting device of rice transplanter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11617385A JPS61271907A (en) | 1985-05-28 | 1985-05-28 | Plantation device of rice planter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11617385A JPS61271907A (en) | 1985-05-28 | 1985-05-28 | Plantation device of rice planter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61271907A JPS61271907A (en) | 1986-12-02 |
| JPH0324163B2 true JPH0324163B2 (en) | 1991-04-02 |
Family
ID=14680599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11617385A Granted JPS61271907A (en) | 1985-05-28 | 1985-05-28 | Plantation device of rice planter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61271907A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07102022B2 (en) * | 1985-08-05 | 1995-11-08 | 井関農機株式会社 | Seedling planting machine |
| JPH0697896B2 (en) * | 1985-08-20 | 1994-12-07 | 井関農機株式会社 | Transplant device |
| JPH0628528B2 (en) * | 1985-09-20 | 1994-04-20 | 井関農機株式会社 | Transplant device |
| JPH0746934B2 (en) * | 1987-04-10 | 1995-05-24 | 井関農機株式会社 | Seedling planting equipment |
| JPH0824461B2 (en) * | 1993-02-04 | 1996-03-13 | 井関農機株式会社 | Seedling planting machine |
| JP5694580B2 (en) * | 2014-01-17 | 2015-04-01 | ヤンマー株式会社 | Rice transplanter's rotary planting equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4917806A (en) * | 1972-04-07 | 1974-02-16 | ||
| JPS51129717A (en) * | 1975-05-01 | 1976-11-11 | Kubota Ltd | Rice transplanting machine |
-
1985
- 1985-05-28 JP JP11617385A patent/JPS61271907A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4917806A (en) * | 1972-04-07 | 1974-02-16 | ||
| JPS51129717A (en) * | 1975-05-01 | 1976-11-11 | Kubota Ltd | Rice transplanting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61271907A (en) | 1986-12-02 |
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